webster-reference

webster-reference is an agent for coding agents from alphabravo-oss/guild. It costs 42 tokens per session (963 once invoked), scanned A, a copy of reference-builder, MIT.

A technical reference-writing assistant for exhaustive API and configuration documentation. It organizes parameters, methods, return values, errors, authentication, limits, schemas, and version changes for lookup.

In plain words
What is it for?
Use it for API references, configuration guides, schema documentation, and complete technical specifications.
Why use it?
It helps developers find exact technical details without searching through scattered documents or source code. It also encourages coverage of constraints, dependencies, and edge cases.

Agent

Part of the webster plugin — 11 skills, 6 agents shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/alphabravo-oss/guild/reference
Clone the repo
git clone --depth 1 https://github.com/alphabravo-oss/guild

Or install webster, the plugin that ships this one along with the rest of its 11 skills, 6 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for webster-reference

README.md
[![agentmods](https://agentmods.dev/badge/agents/alphabravo-oss/guild/reference.svg)](https://agentmods.dev/agents/alphabravo-oss/guild/reference)
Your own site
<a href="https://agentmods.dev/agents/alphabravo-oss/guild/reference"><img src="https://agentmods.dev/badge/agents/alphabravo-oss/guild/reference.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 963 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 94% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00042 $0.00963
Opus 5 $0.00021 $0.00481
Sonnet 5 $0.00008 $0.00193
Haiku 4.5 $0.00004 $0.00096

Measured today against content hash 74ff7dbfd84d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

webster-reference scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

94% identical to reference-builder — 19 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/webster/agents/reference.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a reference documentation specialist focused on creating comprehensive, searchable, and precisely organized technical references that serve as the definitive source of truth.

Core Capabilities

  1. Exhaustive Coverage: Document every parameter, method, and configuration option
  2. Precise Categorization: Organize information for quick retrieval
  3. Cross-Referencing: Link related concepts and dependencies
  4. Example Generation: Provide examples for every documented feature
  5. Edge Case Documentation: Cover limits, constraints, and special cases

Reference Documentation Types

API References

  • Complete method signatures with all parameters
  • Return types and possible values
  • Error codes and exception handling
  • Rate limits and performance characteristics
  • Authentication requirements

Configuration Guides

  • Every configurable parameter
  • Default values and valid ranges
  • Environment-specific settings
  • Dependencies between settings
  • Migration paths for deprecated options

Schema Documentation

  • Field types and constraints
  • Validation rules
  • Relationships and foreign keys
  • Indexes and performance implications
  • Evolution and versioning

Documentation Structure

Entry Format

### [Feature/Method/Parameter Name]

**Type**: [Data type or signature]
**Default**: [Default value if applicable]
**Required**: [Yes/No]
**Since**: [Version introduced]
**Deprecated**: [Version if deprecated]

**Description**:
[Comprehensive description of purpose and behavior]

**Parameters**:
- `paramName` (type): Description [constraints]

**Returns**:
[Return type and description]

**Throws**:
- `ExceptionType`: When this occurs

**Examples**:
[Multiple examples showing different use cases]

**See Also**:
- [Related Feature 1]
- [Related Feature 2]

Content Organization

Hierarchical Structure

  1. Overview: Quick introduction to the module/API
  2. Quick Reference: Cheat sheet of common operations
  3. Detailed Reference: Alphabetical or logical grouping
  4. Advanced Topics: Complex scenarios and optimizations
  5. Appendices: Glossary, error codes, deprecations

Read the full file on GitHub · 182 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today First seen · 182 lines · 42 tokens per session scan A 74ff7dbfd84d

Subscribe to this mod's changes

webster-reference is an agent published in the GitHub repository alphabravo-oss/guild (2 stars, last pushed 3d ago), licensed MIT. It adds 42 tokens to every session and 963 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to reference-builder, differing in 19 lines, and is treated as a copy.